[#16113] Strange idea... exporting from a scope — "Hal E. Fulton" <hal9000@...>

Hello...

33 messages 2001/06/01

[#16364] Re: Garbage Collection? — Michael Davis <mdavis@...>

Windows 2000 and linux (RedHat 6.2). I have run these tests on both OSs.

12 messages 2001/06/09

[#16400] Symbolic Computation III — Mathieu Bouchard <matju@...>

14 messages 2001/06/11

[#16502] Playing with Ruby Syntax (was: Initial thoughts about Ruby From a Smalltalk Programmer) — jweirich@...

Michael> Hi Everyone, I have to say I'm utterly fascinated by Ruby

9 messages 2001/06/15

[#16661] Problem running irb with Ruby 1.6.4 under FreeBSD 4.0 — Bob Alexander <balexander@...>

I've installed Ruby 1.6.4 on a FreeBSD 4.0 machine, and get the

11 messages 2001/06/20

[#16686] opening db files made by apache dbmmanage — Fritz Heinrichmeyer <fritz.heinrichmeyer@...>

14 messages 2001/06/21

[#16801] rb_define_class() vs Class.new() — Kero van Gelder <kero@...4050.upc-d.chello.nl>

Hi,

18 messages 2001/06/23
[#16802] Re: rb_define_class() vs Class.new() — ts <decoux@...> 2001/06/23

>>>>> "K" == Kero van Gelder <kero@d4050.upc-d.chello.nl> writes:

[#16841] RE: national characters is strings — "Aleksei Guzev" <aleksei.guzev@...>

Next week I'll try to rebuild Ruby with Unicode strings. But it would be

15 messages 2001/06/25
[#16842] Re: national characters is strings — matz@... (Yukihiro Matsumoto) 2001/06/25

Hi,

[#16843] Re: national characters is strings — "Aleksei Guzev" <aleksei.guzev@...> 2001/06/25

That's good enough. But I'm afraid this could ( not would ) cause string

[#16868] Something strange with Ruby's inheritance mechanism — Eric Jacoboni <jaco@...>

As Ruby beginner, i try some "canonical" OO scripts. Doing so, I've

14 messages 2001/06/25
[#16873] RE: Something strange with Ruby's inheritance mechanism — "Aleksei Guzev" <aleksei.guzev@...> 2001/06/26

[#16879] Re: Something strange with Ruby's inheritance mechanism — Mathieu Bouchard <matju@...> 2001/06/26

On Tue, 26 Jun 2001, Aleksei Guzev wrote:

[#16869] Something strange with Ruby's inheritance mechanism — Eric Jacoboni <jaco@...>

As Ruby beginner, i try some "canonical" OO scripts. Doing so, I've

12 messages 2001/06/25

[#16881] — "Aleksei Guzev" <aleksei.guzev@...>

32 messages 2001/06/26
[#16916] Re: Method overloading (option) Was: Re: — "Wayne Blair" <wayne.blair@...> 2001/06/26

[#16920] Re: Method overloading (option) Was: Re: — matz@... (Yukihiro Matsumoto) 2001/06/26

Hi,

[#16888] finalizers, destructors and whatnot — "David Leal" <david@...>

Hi all,

16 messages 2001/06/26

[#17037] keeping an Exception object alive — David Alan Black <dblack@...>

Hello --

19 messages 2001/06/28
[#17055] Re: keeping an Exception object alive — matz@... (Yukihiro Matsumoto) 2001/06/29

Hi,

[#17066] RCR: Exception methods (was: Re: Re: keeping an Exception object alive) — David Alan Black <dblack@...> 2001/06/29

Hello --

[#17076] Re: RCR: Exception methods (was: Re: Re: keeping an Exception object alive) — matz@... (Yukihiro Matsumoto) 2001/06/29

Hi,

[#17079] Re: RCR: Exception methods (was: Re: Re: keeping an Exception object alive) — David Alan Black <dblack@...> 2001/06/29

Hello --

[#17138] Re: RCR: Exception methods (was: Re: Re: keeping an Exception object alive) — matz@... (Yukihiro Matsumoto) 2001/07/02

Hi,

[#17141] Re: RCR: Exception methods (was: Re: Re: keeping an Exception object alive) — David Alan Black <dblack@...> 2001/07/02

Hello --

[#17142] Re: RCR: Exception methods (was: Re: Re: keeping an Exception object alive) — ts <decoux@...> 2001/07/02

>>>>> "D" == David Alan Black <dblack@candle.superlink.net> writes:

[ruby-talk:16748] Symbols, and their use as hash keys

From: "Aristarkh A Zagorodnikov" <xm@...3d.ru>
Date: 2001-06-22 06:34:51 UTC
List: ruby-talk #16748
		Hello!

	May anyone enlighten me with knowledge of how symbol integer value
(Symbol#to_i) is generated ?
	Also, I'm interested why using it as a hash key is about 5-8 times slower
then string of the same size ?
	I understand that Symbols are not intended for this purpose, but I end up
using them as named constants, also using as a hash keys. My current work
involves a lot of hash manipulation (and in multiple-level-deep
cycles/sorting routines), so any performance gains are valuable. I tried
using strings instead of symbols - it makes it run a lot faster, but look a
lot uglier.
Also, imho there is only one Symbol with a defined name, but we have
multiple same string - this may increase memory (and GC) load. So in any
cases I prefer to go with Symbols,
but not until someone explain what's all the stuff about them :)

Thanks for your attention
Aristarkh A Zagorodnikov, Lead Programmer, W3D Group
http://www.w3d.ru /// xm@w3d.ru /// ICQ UIN 36987938

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